Drop-guide and operating mechanism therefor.



c. VAN MIDDLBSWORTH. DROP GUIDE AND OPERATING MBCHANISM THEREIOH.

. PPLGAi'IOH ILED OGI. 15, i909. 7 j Y loogg w l y Patented Mnm l' SBHEETB f i t wi/wooded @fwn la, @AMM mmh-M l Jlouiut? C. VAN MIDDLESWORTH. I DROP GUIDE AND OPERATING MEGHANISM THBREPom APPLICATION FILED 0012.15, 1909.

1,008,288'. v v Patented Nov. 7, 1911.

3 SHEETS-SHEET 2.

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C. VAN MIDDLBSWORTH.

DROP GUIDE AND OPERATING MEGEABISM THEBEFOR.

APPLICATION FILED 0611.4, 1909.

1,008,288. Patented Nev.7,1911.

A 3 SHEETS-SHEET 3.

entren sra'rns rirrnnr orrion.

CHARLES VAN MIDDLESVVORTH, OF BOOKLY, NEW YORK, ASSIG-NOR T0 THE VAN DYCK GRAVURE COMPANY, OF NEW YORK, N. Y.

DROP-GUIDE AND OPERATING MECHANISM THEREFOR.`

1,008,288. riginal application led November 23,

guides maybe raised at every revolution of the printing cylinder or only at every alternate revolution thereof, as well as the detailed construction of the drop guides themselves.

.This is a divisional applic-ation of my application for printing machines, Serial No. 46h09@ filed November 93rd, 1908.

I have shown one embodiment. of my invention in the accompanying drawings, in which- 1 Figure 1 is a side elevation of a printing press equipped with niv invention; Fig. 2 is an enlarged view of the drop-guides; Fig..

3 is a detail view of the mechanism used for operating the drop-guides; Fig. 4 is a. plan view of the same; and Figs. 5 and G are details of the operating mechanism.

In the acompan vi'f g drawings, 1 represents e side standard for supporting the parts of the printing machine, only one of these standards being shown in Fig. 1, although there is a similar standard on the other side of the machine. Supported in the standards there is anl impression cyiinde r 3 having its journals 4 located in an eccentric. sleeve 5 supported in the journal bearings 6. The eccentric sleeve. 5 has attached thereto an arm 7, to the end of which is attached a link 8 designed to connect the eccentric sleeve with a manually-operated lever 9. The lower end of the lever 9 is pivoted at l0 to the side standard 1, while the other end ot the lever is provided with a handle 11, so that the same maj.- be con, veniently moved to raise and lower the impression cylinder.

'A feeding table 12 is adapted to be supported at its outer end from tbe standard., and at its inner end' from the journals 5. This is accomplished in the following man- Speeication of Letters Patent.

' chine.

ner :-Tbe table has attached thereto on its under face a supporting bracket 13, the

V table being pivoted to the same at 14 near the outer end oi the table, while. the inner end of the table is' supported by means of an adjustable screw 15, screw-threaded in an upright 16 of the bracket 13, and having its head located in contact with the under lace ot the table. The outer end of the bracket 13 is supported from the standards through the agency of links 16a, one ot which is situated on either side of the printing ma- The links 16 are connected at their lower ends to the standards by means of an integral bracket 17 projecting from each of the side standards. supporting bracket 13 is supported directly upon the eccentric sleeve 5 at each end of the impression cylinder, as shown in Fig. 1, the bracket tor this` purpose being provided with a circular housing 1S surrounding the eccentric sleeve 5. It will thus be seen that by the parts above described, a movement of the handie 11 ett'ects a movement simultaneonsly either up or down of the impression cylinder 3 and the feeding table 1Q. rlhe supporting bracket- 13 also supports journal bearings 1f), located on either side of the impression cylinder, for a vshaft 20, which carries a series of drop guides Q1. The bearings 19 are situated in detachable arms 22. which are bolted to the upper face of the circular housing 1S b v means of the bolts 23. I prevent the shaft SZ() from becoming displaced out of its proper positioii in a lateral direction, by inserting screws 24 in the journal bearings 19 so as to register with depressions or grooves located at these points in the shaft 20.

.Cach of the drop guides 21 comprises a bracket 25 having a split sleeve adapted to surround the shaft 2() and be tightened upon the same bymeans of a screw 2G having a thumb-piece 27. In the and of the bracket I support, by means of a journal bearing '28, a rod 29, the inner end of which is serew-threaded so as to carry a milled nut 30, which nut 30 is situated in an opening 31 on the end of the bracket 25. A spring 3Q is provided around the rod 29, between the journal bearing 9.8 and the milled'nut 30,so to press the milled nut 30 continually in a rearward direction against the bracket Q5. The nut 30 is furthermore pro- Patented Nov. 7, i911.

1908, Serial No. 464.096. Divided and this application filed October 15, 1909. Serial No. 522,752.

The inner end ot' the end of the rod '35) carrie` a depending arm 255. which ia located in a vertical po ition. 'l`o this arm 35 is riveted a curved guide SG,

the end iii' oi which is directed toward the. g

arm a.) in an angular t'lireetion. The end 8T of the cnrvedgnide 23() is, however, directed to a point on the arn 35 slightly ahove the end of the latter.

ries a ;'ear 10i? which.nn-shes with another .eear 103. rituali-d upon an extension of the .Shaft l which carrier: the impression C idinder. The fear 10i is; exactlv twice the diameter of the gear 102), so that as a con` setptence. when the gears are in lnebh a single iltatimi of the impreesion cylinder will produce a half re.'olutien of the gear' 1t2. ihn#v requiring two revolutions of the `fear 1023 for each complete revolntitm of the 1n the downward position of the drop guide. the arm 35 is deSijfned to resti against a tongue which extends` from beneath the. table 1'2, troni i whieh it is supported hy means' of a transverse. Strip Htl.' as `shown in Fig. 2.

tahie 12 carries a series of tongues 3S cooperatingr with sind drop guides. it will ,gear 102. l have, however. made the shaft `l zullh-iently lon;` so that the gear 103 which is, carried upon said Shaft and secured thereto in.' means of aA spline lol may he, moved ont oi" mesh with the gear 102 so' as to disrng'age the shafts .l and 101. ll'hen so E moa'ed the gear 103 .vii occupy a position 'l'he shaft tl carries a Series. of drop` guides of the. 'haracter described and the;

now he olaervetl that a movement of thef handle 1l so as to raire or lower the i1nin a correspondinel movement ot tne drop guides; il and the table. 1; with its a taclzed tongues 3S.

lower is conveyed to the nia -hine from a shaft' ltl .suppo 'ted in the Side stantiarda. 'This shaft -ltl is conneeted hv suitahle gears Witha shaft l1 also situated in the Side standards. As these gear: eonsttitute noportion of nl v invention. and as the understantiling of' the machine would he fatfililated hy their o1ni. -;-;ion. i have left them ont of the deeription of the maehine. The shaft -11 carrier#` the printing cylinder -11. The. print incr c slinder may he of any deired character. VIt may he a c vlinder provided with a photographie printingr Snrface, or it may he providedV with an intaglio or relief printing surface, luitin the particular printingr prin-ess which l malte use of in connection with this machine. 1 use a 1to- 2 Yravnre etching' as the printing snrtaee.

Power is conveyed from the printing Cylinder hv means of a gear -l situated upon the, l anie. to the ,ixnirresnion cylinder il.; her end thereof a rlhere are. o1 course.. two ol the i structed as follows A cam tot! is carried upon a stub Shafty 101, which is earried in an extension 9T of one of the snpportine' brackets 13. The said shaft. 101 also carsnr-h a hown in detted lines in Fig. 1. AS the panel' is j f'rmpeal h v the gripper jaws= it ary to move the drop ont of the path oi the sheet oi' paper. and in erde-r to efll'eet this, l iota-tte open the cnil of the .shaft Qt). as nhmzz: in l'ig, 4.a lever arm "(15. which has a lateral extenrion 1Go attached thereto by meas. of a screw 10T. The, leve` arm 105 ib tightly secured to said shaft '20. The lateral extension 10b' iS adapted to he normali): drawn downwardly by means of a spring 105. which is attached atits lower end to ainy convenient support. such as rod 1th. hellrranlt lever 110 piro' l to the traine SlT upon a stuh shaft 111.` One end of thiA hell-crank lever 110 e.\" .ida beneath the lateral projection lttt'. yhere the said lever 11() is curved to canse the, extension 'ititr'to alwavs` he tangent to the portion of the heli eraiik lever with which it. contacts. lipon the same .stuh shaft 111.*there in a dopending lever arnt 11;). loosely carried upon Said ha'ft. the lower end of which-carries a roller 111i designed to ran upon a cani 1141, tightly secured to the Shaft' 4. The lower end of the lever arm 11i? is normally niaintained in contact with the cani 11i by a spring 1li'.l which is attached thereto at.. one end and at the other end to a Small hrarhet 11'."l attached to the frame 9i'. The lever arm 112 is furthermore maintainedl from passing beyond one side of thel helleranl: leverlltt lira projection 112C. situated upon t lower end of the hellleranl: lever 110 ano projectingr he vond the. lever arm 11:2.,

'l`hs lever arm 112 carries near its center a im# ng 115. in the center of which is sit.-

natil longitudinally movahle rod or pluncrank lever 110. Any nioveinent ofthe lever arm 112 in this position of the parts, therefore, causes a corresponding movementof the hell-erank lever 110. The plunger 116 is nu ved back and. forth into and ont. of engagement with the hole 11S) by the movement of the pin 11T, which engages with the bifnrcated end 119 of a lever 120, pivoted at 121 to a bracketcarried npon the side of the frame 97. The lever 120 has at its other end a roller 1231 which rune; Within the fan 100, above referred to. When the plnn ,ejer 11G is maintained at its innermost position, in which it engages the hole 11S), the rotation of the shaft 1, and as a Consequence, the attached cani 114, causes the. lever arm 1.12 to be. moved in unison with the bellcrank 110. As a consequence, wit l1 each revolution of the impression cylinder the drop guides 21 are raised at the moment that the grippers pass the erige or end of the feeding table 12. The parts operate in the manner described when the gear 103 has been moved into the position shown in dotted lines, and the gear 102 is caused to remain stationary. When, however, the gear 103 is moved inwardly so as to mesh with the gear 102, daring every other revolution of the gear 1023. and as a consequence. the. impression cylinder 3, the roller 12?) is moved by the cam 1U() into such a position that. the pin 117 is caused to withdraw the plunger 11G from engagement- \vith the hole 11), thereby permitting the movement of the lever arm 112 .vithout causing the movement of the bell-rrank lever 110. In this position of the. parts, therefore, the drop guides remain .stationamv in their lon'ermost positions throughout every alternate revolution oi" the impression cylinder. as the raising of the drop gnidesis itiiiiet'ts."z\iy and even dis- :nlvantageous during;` the times when it is not desired lo feed additional sheets of paper.

102. A sheet of paper is now fed down the table 12 until it contacts with the ends of the drop guides 21. T hen the paper vis gripped by the grippers. Meantime, the drop guides 2l have been raised through the agency of the lever arm 112, nhich is aetnated by the cam 114; so as to permit the edge of the paper to pass onnard ,with the cylinder vvithoat any danger of tearing. In the case where it is desired to canse the sheet to be. printed with a second impression, the gear 103 is moved inwardly so as to mesh with gears 102.

l claim:

l. 1n a printing press, the combinano.; a printing couple. for giving each sheet ol paper a plurality of impressions, one er... `aides for positioning a sheet of paper nein;s fed to the press, and adjustable means for permitting the feeding' of a new sheetof paper to the press at every impression made therein or only at every other impression made therein.

ln a printing press, the combination ot' a printing couple` one or more guides for positioning a sheet ol paper being ted to the press, a lever for actuating the same, a seoond lever adapted to operate said first mentioned lever, acam for operating said seeond lever. and means for connecting said levers together 01115r at every other impression made by the printing couple.

3. ln a printing press, the combination of a printing couple, one or more guides for positioning a sheet of paper benner 'fed to the` press, a lever fo' actuating:r the same, a seeond lever adapted to operate said tirsv meationed lever, a ram for operating said set:- ond lever, and means for connecting said levers together onlj,1 at everjv other impression made by the printing couple, said means being adapted to be adjusted to permit said levers to be permanently connected.

ln testimony that. l claim the foregoing l have hereunto set. my hand,

(lllAlthlS VAN MlllDhl-SWORTH. 1V it nesses (ironia: l. lmxnnn, A. Ni-nvoonn. 

